#
# This file is part of the GROMACS molecular simulation package.
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# Copyright 2019- The GROMACS Authors
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# Set up the module library
add_library(nbnxm INTERFACE)

add_subdirectory(kernels_simd_4xm)
add_subdirectory(kernels_simd_2xmm)

file(GLOB NBNXM_SOURCES
    # Source files
    atomdata.cpp
    exclusionchecker.cpp
    freeenergydispatch.cpp
    grid.cpp
    gridset.cpp
    kernel_common.cpp
    kerneldispatch.cpp
    nbnxm.cpp
    nbnxm_geometry.cpp
    nbnxm_setup.cpp
    pairlist.cpp
    pairlistparams.cpp
    pairlistset.cpp
    pairlistwork.cpp
    pairlist_simd_kernel.cpp
    pairlist_tuning.cpp
    pairsearch.cpp
    prunekerneldispatch.cpp
    # Reference kernel source files
    kernels_reference/kernel_gpu_ref.cpp
    kernels_reference/kernel_ref_1x1.cpp
    kernels_reference/kernel_ref_4x4.cpp
    kernels_reference/kernel_ref_prune.cpp
    simd_energy_accumulator.cpp
    simd_prune_kernel.cpp
    # Benchmark source files
    # TODO these should not be in libgromacs
    benchmark/bench_setup.cpp
    benchmark/bench_system.cpp
    )

if(GMX_GPU_CUDA)
    add_subdirectory(cuda)
    gmx_add_libgromacs_sources(nbnxm_gpu_data_mgmt.cpp nbnxm_gpu_buffer_ops.cpp)
    _gmx_add_files_to_property(CUDA_SOURCES
        nbnxm_gpu_data_mgmt.cpp
        nbnxm_gpu_buffer_ops.cpp
        )
endif()

if(GMX_GPU_OPENCL)
    add_subdirectory(opencl)
    set(NBNXM_OPENCL_KERNELS ${NBNXM_OPENCL_KERNELS} PARENT_SCOPE)
    gmx_add_libgromacs_sources(nbnxm_gpu_data_mgmt.cpp nbnxm_gpu_buffer_ops.cpp)
endif()

if(GMX_GPU_SYCL)
    add_subdirectory(sycl)
    gmx_add_libgromacs_sources(nbnxm_gpu_data_mgmt.cpp nbnxm_gpu_buffer_ops.cpp)
    _gmx_add_files_to_property(SYCL_SOURCES nbnxm_gpu_data_mgmt.cpp nbnxm_gpu_buffer_ops.cpp)
endif()
    
if(GMX_GPU_HIP)
    add_subdirectory(hip)
    gmx_add_libgromacs_sources(nbnxm_gpu_data_mgmt.cpp nbnxm_gpu_buffer_ops.cpp)
    _gmx_add_files_to_property(HIP_SOURCES nbnxm_gpu_data_mgmt.cpp nbnxm_gpu_buffer_ops.cpp)
endif()

set(LIBGROMACS_SOURCES ${LIBGROMACS_SOURCES} ${NBNXM_SOURCES} PARENT_SCOPE)


# Source files have the following private module dependencies.
target_link_libraries(nbnxm PRIVATE
        )

# Public interface for modules, including dependencies and interfaces
#target_include_directories(nbnxm PUBLIC
#        $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/include>)
#target_link_libraries(nbnxm PUBLIC
target_link_libraries(nbnxm INTERFACE
        legacy_api
        gpu_utils
        )

# TODO: when nbnxm is an OBJECT target
#target_link_libraries(nbnxm PUBLIC legacy_api)
#target_link_libraries(nbnxm PRIVATE common)


if (BUILD_TESTING)
    add_subdirectory(tests)
endif()
